hash/xid8_ops (class)

Hash operator class for xid8; member of xid8_ops.

Reading PG 18·Select a recorded version

Object kind: Operator class
Index AM: Hash
Input type: xid8
Stored key type: Same as input type (catalog zero)
Default class: yes
aliases: xid8_ops, hash/xid8_ops
classes: map[default:t family:xid8_ops family_slug:family-hash-xid8_ops input_type:xid8 key_type:none method:hash name:xid8_ops slug:class-hash-xid8_ops source_oid:]
operators: map[description:equal family:xid8_ops family_slug:family-hash-xid8_ops left_type:xid8 method:hash operator:=(xid8,xid8) operator_slug:op-3d-xid8-xid8 purpose:search result_type:bool right_type:xid8 sort_family: sort_family_slug: strategy:1]
signature: hash/xid8_ops
source oid: Unknown

Definition PG 18

Hash operator class for xid8; member of xid8_ops.

Family operator strategies

Operator overload	Strategy	Purpose	Ordering family	Membership scope	Source description
=(xid8,xid8)	1	search		Class input pair	equal

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	xid8	xid8	hashxid8(xid8)	int4
2	xid8	xid8	hashxid8extended(xid8,int8)	int8

Classes in this family

Class	Input type	Key type	Default
xid8_ops	xid8	Same as input type	yes

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Complete source facts

class

{"default":"t","family":"xid8_ops","input_type":"xid8","key_type":"none","method":"hash","name":"xid8_ops"}

support functions

map[family:xid8_ops family_slug:family-hash-xid8_ops function:hashxid8(xid8) left_type:xid8 method:hash number:1 result_type:int4 right_type:xid8], map[family:xid8_ops family_slug:family-hash-xid8_ops function:hashxid8extended(xid8,int8) left_type:xid8 method:hash number:2 result_type:int8 right_type:xid8]

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Text language: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f